OSG Spiral Flute Tap: 7/16"-14 UNC, 2B, 3 Flute, Bottoming Chamfer
The OSG Spiral Flute Tap (7/16"-14 UNC, MPN 2986900) is a general-purpose spiral-flute tap with a 2B thread class, bottoming chamfer, 3 flutes, and high-speed steel construction. 3G Electric interprets your demand…
SKU 3G-OTH-230323
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Product Description
The OSG Spiral Flute Tap (7/16"-14 UNC, MPN 2986900) is a general-purpose spiral-flute tap with a 2B thread class, bottoming chamfer, 3 flutes, and high-speed steel construction. 3G Electric interprets your demand for this OSG tap and delivers it as part of our broad industrial supply across 14 departments, with specialist depth in cutting tools and machining.
Frequently Asked Questions
What is the OSG spiral flute tap 7/16"-14 UNC used for?
This OSG spiral flute tap is designed for threading blind holes in materials such as steel and cast iron. The spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threading is required.
What are the specifications of the OSG spiral flute tap MPN 2986900?
The OSG spiral flute tap MPN 2986900 has a thread size of 7/16"-14 UNC, a 2B class of fit, and a bottoming chamfer for threading to the bottom of blind holes. It features 3 flutes and is made from high-speed steel (HSS). The manufacturer part number is 2986900.
Where to buy the OSG spiral flute tap 7/16"-14 UNC worldwide?
You can source the OSG spiral flute tap 7/16"-14 UNC worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this and other OSG taps.
How to select the correct OSG spiral flute tap for blind holes?
For blind holes, choose a bottoming chamfer tap like this OSG model to thread close to the hole bottom. The spiral flute design is ideal for chip evacuation in blind holes. Ensure the tap size matches your thread specification (e.g., 7/16"-14 UNC) and material compatibility with high-speed steel for general-purpose use.
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3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















